Senior Data Scientist and Marketing Effectiveness (MMM)

  • Limelight Health
  • 25/07/2026
Full time Information Technology Telecommunications SQL Python

Job Description

Overview

Ekimetrics is a global leader in Marketing Effectiveness and AI-powered solutions. Since 2006, we have helped businesses optimise marketing and operations by combining AI with business and tech expertise across four domains: Marketing Effectiveness, Customer Analytics, Operational Excellence, ESG & sustainability. With in-house teams and offices in Paris, London, New York, Hong Kong, and Shanghai, we deliver tailor-made solutions that turn data into real positive impact, leveraging our technology and services. Our mission is to harness AI at scale with responsibility and values-driven work.

Your responsibilities

As a Senior Analyst specialising in Data Science & Marketing Effectiveness, you will lead the delivery of high-impact MMM programmes for international clients across industries such as Auto, Beauty, Retail, and Financial Services. You will manage small teams, oversee end-to-end project delivery, and ensure actionable insights are delivered to clients.

Lead Projects
  • Lead end-to-end MMM and marketing effectiveness programs for international clients, from data strategy and collection to modelling, insights, and activation.
  • Apply econometrics, regression, Bayesian statistics, and machine learning methods to analyse marketing and customer data.
  • Collaborate closely with Managers to understand the project scope, structure, analytical approaches, manage operations and ensure timely delivery.
  • Build dashboards and visualisation tools to communicate actionable insights using proprietary Ekimetrics frameworks and best practices.
  • Translate complex analytics into clear, business-oriented recommendations for senior stakeholders and C-suite clients.
  • Support clients in optimising marketing spend, understanding campaign performance, improving customer segmentation, and maximising ROI.
Client & Account Management
  • Serve as the day-to-day operational contact for clients, building trustful relationships and proactively identifying growth opportunities.
  • Present findings, recommendations, and actionable insights in client-facing workshops and executive presentations.
  • Collaborate closely with managers and partners to develop proposals for new or expanded work, aligned with Ekimetrics' commercial offerings.
People & Project Leadership
  • Lead teams of 3-10 colleagues across multiple projects, ensuring high-quality delivery, client satisfaction, and profitability.
  • Mentor and develop junior team members, strengthening technical, analytical, and client-facing competencies.
  • Share best practices and contribute to internal knowledge management initiatives.
Practice & Business Growth
  • Identify opportunities for account growth and contribute to development with existing and prospective clients.
  • Act as an ambassador of Eki culture by supporting transversal initiatives (e.g., Thought Leadership, Knowledge Management, Recruitment and Innovation).
  • Champion and role-model our core values: Curiosity, Creativity, Excellence, Transmission, Pleasure.
Your profile

Experience & Technical Skills

  • Strong 3-4 years' experience in marketing effectiveness/MMM and analytics/data science.
  • Bachelor's or master's degree in Statistics, Econometrics, Data Science, Economics, Applied Mathematics, Marketing Analytics, or related field.
  • Strong proficiency in Python, R, SQL, or similar tools.
  • Experience with Databricks, Azure, or other cloud/data platforms is a plus.
  • Solid understanding of econometrics, regression analysis, Bayesian statistics, or other advanced modelling techniques.
  • Experience translating data and model outputs into actionable business recommendations.
  • Comfortable handling large datasets, optimizing data pipelines, and delivering high-quality outputs.
  • Leadership & Client-Facing Skills
  • Excellent communication and storytelling skills for senior stakeholders.
  • Demonstrated ability to lead multiple project teams and manage priorities with autonomy.
  • Strong strategic thinking, problem-solving mindset, and drive for continuous improvement.
  • Supportive team player with a passion for talent development, coaching, and enabling team growth.
  • Ability to contribute to impactful thought leadership and forward-thinking perspectives on measurement and marketing effectiveness.
Why join us?

At Ekimetrics, your ideas matter. We embrace an entrepreneurial spirit and a collaborative environment, with a focus on safe, inclusive spaces where you can bring your authentic self. We have pursued CSR and purpose-driven work, and are committed to sustainability through data science and AI. We are proud to be recognised as a Great Place to Work in multiple regions and to be part of initiatives and communities that support growth and innovation.

Career development and growth opportunities
  • Lead projects and develop advanced analytical and client-facing skills.
  • Structured career progression from Senior Analyst, Manager, Senior Manager and beyond.
  • Access to Eki.Academy, including solution-specific training, Climate School courses, and career development programs.
  • Exposure to international clients, multiple industries, and high-impact projects.
Compensation and benefits
  • Salary £60,000-£75,000 plus 10% bonus and corporate bonus.
  • Regular events and seminars to connect with colleagues.
  • Modern office space in a central London location.
  • Flexible hybrid working policy (2 days in office + 20 days work from anywhere).
  • 25 days annual leave plus bank holidays, with an additional 3 days for tenure.
  • Private healthcare, life insurance, and wellbeing support.
  • Group pension scheme.
  • Opportunities for international mobility and career development.

Equal employment opportunities: Ekimetrics is committed to an inclusive work environment that respects diversity and provides equal opportunity for all applicants.